python 模拟浏览器登陆coursera

import requests
import random
import string
def randomString(length):
    return ''.join(random.choice(string.ascii_letters + string.digits) for i in range(length))

XCSRF2Cookie = 'csrf2_token_%s' % ''.join(randomString(8))
XCSRF2Token = ''.join(randomString(24))
XCSRFToken = ''.join(randomString(24))
cookie = "csrftoken=%s; %s=%s" % (XCSRFToken, XCSRF2Cookie, XCSRF2Token)

url = "https://accounts.coursera.org/api/v1/login"
logininfo = {
            "email":"...",
            "password":"...",
            "webrequest":"true"
        }
user_agent = (
        'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36'
        )
post_headers = {"User-Agent": user_agent,
                "Referer": "https://accounts.coursera.org/",
                "X-Requested-With": "XMLHttpRequest",
                "X-CSRF2-Cookie": XCSRF2Cookie,
                "X-CSRF2-Token": XCSRF2Token,
                "X-CSRFToken": XCSRFToken,
                "Cookie": cookie
                }
coursera_session = requests.Session()

login_res = coursera_session.post(url,
                                  data=logininfo,
                                  headers=post_headers,
                                  )
if login_res.status_code == 200:
    print("Login Successfully!")
else:
    print(login_res.text)